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介绍了P91钢埋弧焊丝的成分设计原则,选用英国曼彻特公司生产的埋弧焊焊丝METRODE9CrMoV-N与研制的KJS91埋弧焊焊丝进行了焊接工艺对比试验,测试了焊缝成分、冲击韧性、拉伸强度、金相组织和硬度。试验结果表明:KJS91埋弧焊焊丝熔敷金属具有较高的韧性和强度,且满足AWS及BSEN标准要求。
The compositional design principle of P91 steel submerged arc welding wire was introduced. The welding process comparison test between METRODE9CrMoV-N and the developed KJS91 submerged arc welding wire was carried out. The weld composition, impact toughness Tensile strength, microstructure and hardness. Test results show that: KJS91 submerged arc welding wire deposited metal has high toughness and strength, and to meet AWS and BSEN standards.